Table 6.

Associations between size at birth and ultrasound abdominal depth measurements at 3 months (487 infants) and 12 months (495 infants).

	Birth weight SDS		Mean skinfold thickness SDS at birth
	B ± SE1	P value	B ± SE1	P value
Model 1
US-visceral depth (cm)
3 months	−0.024 ± 0.027	0.4	−0.059 ± 0.031	0.06
12 months	−0.041 ± 0.024	0.09	−0.062 ± 0.028	0.03
US-subcut abdo depth (cm)
3 months	0.005 ± 0.005	0.3	0.015 ± 0.005	0.004
12 months	0.002 ± 0.004	0.6	0.007 ± 0.005	0.1
Model 2
US-visceral depth (cm)
3 months	−0.041 ± 0.031	0.2	−0.073 ± 0.033	0.03
12 months	−0.045 ± 0.026	0.09	−0.073 ± 0.028	0.009
US-subcut abdo depth (cm)
3 months	−0.012 ± 0.005	0.01	0.005 ± 0.005	0.3
12 months	−0.011 ± 0.004	0.01	0.002 ± 0.005	0.7

Results are shown before (Model 1) and after (Model 2) adjustment for body size at the time of the ultrasound measurement.

Model 1: adjusted for sex.

Model 2: also adjusted for current weight or skinfolds, respectively.

¹ B: Regression coefficient (and respective standard error); this represents the SD change in each parameter per 1 SDS change in birth weight or skinfold thickness at birth.